77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
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package dao
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import (
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"context"
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"crypto/hmac"
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"crypto/sha1"
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"encoding/base64"
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"errors"
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"fmt"
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"hash"
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"io"
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"net/http"
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"strconv"
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"time"
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"go-common/library/ecode"
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"go-common/library/log"
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)
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var (
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errUpload = errors.New("Upload failed")
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)
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// Upload upload bfs.
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func (d *Dao) Upload(c context.Context, fileType string, filename string, body io.Reader) (location string, err error) {
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req, err := http.NewRequest(d.c.BFS.Method, d.c.BFS.URL+filename, body)
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if err != nil {
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log.Error("http.NewRequest error (%v) | fileType(%s)", err, fileType)
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return
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}
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expire := time.Now().Unix()
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authorization := authorize(d.c.BFS.Key, d.c.BFS.Secret, d.c.BFS.Method, d.c.BFS.Bucket, filename, expire)
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req.Header.Set("Host", d.c.BFS.Host)
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req.Header.Add("Date", fmt.Sprint(expire))
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req.Header.Add("Authorization", authorization)
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req.Header.Add("Content-Type", fileType)
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// timeout
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ctx, cancel := context.WithTimeout(c, time.Duration(d.c.BFS.Timeout))
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req = req.WithContext(ctx)
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defer cancel()
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resp, err := d.client.Do(req)
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if err != nil {
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log.Error("d.Client.Do error(%v) | url(%s)", err, d.c.BFS.URL+filename)
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err = ecode.BfsUploadServiceUnavailable
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return
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}
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if resp.StatusCode != http.StatusOK {
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log.Error("Upload http.StatusCode nq http.StatusOK (%d) | url(%s)", resp.StatusCode, d.c.BFS.URL+filename)
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err = errUpload
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return
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}
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header := resp.Header
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code := header.Get("Code")
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if code != strconv.Itoa(http.StatusOK) {
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log.Error("strconv.Itoa err, code(%s) | url(%s)", code, d.c.BFS.URL+filename)
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err = errUpload
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return
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}
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location = header.Get("Location")
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return
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}
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// authorize returns authorization for upload file to bfs
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func authorize(key, secret, method, bucket string, fname string, expire int64) (authorization string) {
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var (
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content string
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mac hash.Hash
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signature string
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)
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content = fmt.Sprintf("%s\n%s\n%s\n%d\n", method, bucket, fname, expire)
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mac = hmac.New(sha1.New, []byte(secret))
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mac.Write([]byte(content))
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signature = base64.StdEncoding.EncodeToString(mac.Sum(nil))
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authorization = fmt.Sprintf("%s:%s:%d", key, signature, expire)
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return
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}
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